South Korea yesterday shut down two nuclear reactors and delayed the scheduled start of operations at two more, prompting government warnings of “unprecedented” power shortages.
The latest move, part of a widening investigation into a scandal involving parts provided with fake safety certificates, means 10 of the South’s 23 nuclear reactors are currently offline for various reasons.
“Power shortages on an unprecedented scale are feared this summer,” the Ministry of Trade, Industry and Energy said in a statement, adding that replacing suspect parts could take up to four months.
Blackout alerts, triggered automatically when power reserves dip below a certain level, were highly likely and power shortages could be “very serious” in August, it said.
The ministry said it would “strongly” enforce measures to reduce energy consumption, including rescheduling working hours to stagger demand.
South Korean President Park Geun-hye expressed “great concern” about the prospect of power shortages and ordered a full, transparent probe into the case.
“Nuclear power [safety] is a very important issue linked directly with the safety of our people,” she told a Cabinet meeting.
At proper capacity, South Korea’s nuclear reactors supply more than 35 percent of national electricity needs.
The Nuclear Safety and Security Commission said it had shut down two reactors — one at the Gori nuclear complex and another at the Wolseong plant — after learning that both had used parts supplied with forged warranties.
The scheduled resumption of another reactor under maintenance at Gori, and the start of a new reactor at Wolseong were postponed for the same reason, the commission said.
Parts used at all four reactors would have to be replaced, it added.
All parts supplied for use in South Korean reactors require quality and safety warranties from one of 12 international organizations designated by Seoul.
Last year, officials said eight suppliers were found to have faked warranties covering thousands of items used in a number of reactors. Earlier this month six nuclear engineers and suppliers were jailed for their part in the scandal.
Although the suspect parts were “non-core” components that presented no public safety risk, the authorities instigated an inspection of all reactors nationwide.
Yesterday’s ministry statement said further criminal and civil lawsuits would be filed against any organization or individual found to have forged documents.
“Criminal investigation will also be requested for wrongdoing by suppliers, testing agencies and organizations in charge of verification,” including the state-run Korea Hydro & Nuclear Power Co, it added.
South Korea’s nuclear sector has been dogged by a series of malfunctions, forced shutdowns and corruption scandals that have undermined public confidence.
Despite increasing public concern, the government has vowed to push ahead with its nuclear power program, and plans to build an additional 16 reactors by 2030.
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